Thread: java using textpad. Atm code not having any syntax error but runs funny

my project is due on monday. its about an ATM. i shows no errors but it runs wierd. when i chek my balance it shows me the first balance and when i run it again it jumps to the next balance instead of sticking with the first one and it doesnt accept the second and third row of username and passwprd. you will understand it better when you run it. p,ls help me i need this before monday.ill attach the file and input file. the code is below:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.event.ActionEvent;
import java.util.*;
import java.lang.String;
import java.io.*;
import javax.swing.JOptionPane.*;

public class CNEATM extends JFrame
{
private JButton aButton;
private JButton pButton;
private JButton wButton;
private JButton dButton;
private JButton qButton;
private JButton welButton;

private QuitButtonHandler qHandler;
private WelcomeButtonHandler welHandler;

private static final int WIDTH = 500;
private static final int HEIGHT = 200;

public CNEATM()
{

qButton = new JButton(" QUIT ");
qHandler = new QuitButtonHandler();
qButton.addActionListener(qHandler);

welButton = new JButton(" Welcome.. Lets get started ");
welHandler = new WelcomeButtonHandler();
welButton.addActionListener(welHandler);

//My Title
setTitle("ATM");

//Get the container
Container pane = getContentPane();

//Set the layout
pane.setLayout(new GridLayout(5,1));

//Place all items created

pane.add(qButton);
pane.add(welButton);

//set the size of the window and display it
setSize(WIDTH,HEIGHT);
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
}

private class QuitButtonHandler implements ActionListener
{
public void actionPerformed(ActionEvent e)
{
System.exit(0);
}
}
public static void main(String[] args)
{
CNEATM rectObject = new CNEATM();
}

private class WelcomeButtonHandler implements ActionListener
{
public void actionPerformed(ActionEvent e)
{

try
{
Scanner inFile = new Scanner (new FileReader("ATM.txt"));



String name;
String name2, Bal = "Your Balance";

name = JOptionPane.showInputDialog("enter the account number ");
name2 = JOptionPane.showInputDialog("enter the pin number ");
String selection = " ";
String iF1, iF2, iF3 ,Password = "Wrong Password or Account Number.... Goodbye" ;;

while(inFile.hasNext())
{
iF1 = inFile.next();
System.out.Println(+ iF1 +iF2 +iF3);
iF2 = inFile.next();
iF3 = inFile.next();
System.out.Println(+ iF1 +iF2 +iF3);
if((iF1.equals(name)) && (iF2.equals(name2)))
{

selection = JOptionPane.showInputDialog(" [1] Check Balance \n [2] Withdrawal \n [3] Deposit \n [4] Exit ");

}


if (Integer.parseInt(selection) == 1)
{
String selection1;

String bala = " Amount " +iF3;
JOptionPane.showMessageDialog(null,Bal, "You have selected Balance.\n", JOptionPane.INFORMATION_MESSAGE);
JOptionPane.showMessageDialog(null, bala,"\t-- Your Current Balance ", JOptionPane.INFORMATION_MESSAGE);
selection1 = JOptionPane.showInputDialog("Return to main menu? \n [1] for YES \n [2] for NO");
if (Integer.parseInt(selection1)==1)

selection = JOptionPane.showInputDialog(" [1] Check Balance \n [2] Withdrawal \n [3] Deposit \n [4] Exit ");

else
System.exit(0);

}

if (Integer.parseInt(selection)== 2 )
{
String withdrawSelection, Back;
String with = "Withdrawal", withdr = "withdrawal", withdra = "withdrawal";
int Pay = 0;
int currentBal;
withdrawSelection = JOptionPane.showInputDialog("Enter amount in multiple of 20");
if (Integer.parseInt(withdrawSelection) % 20 == 0 && Integer.parseInt(selection) < 10000)

Pay += Integer.parseInt(withdrawSelection);




currentBal = Integer.parseInt(iF3) - Pay;
JOptionPane.showMessageDialog(null, with, "Please take your funds.", JOptionPane.INFORMATION_MESSAGE);
Back = JOptionPane.showInputDialog("Return to main menu? \n [1] for YES \n [2] for exit");
if (Integer.parseInt(Back)==1)

selection = JOptionPane.showInputDialog(" [1] Check Balance \n [2] Withdrawal \n [3] Deposit \n [4] Exit ");
else
System.exit(0);


}
if (Integer.parseInt(selection)== 3 )
{
String addSelection, Deposit = "Deposit made", Money, backe;
int Paye = 0;
Money = JOptionPane.showInputDialog (" Whats the Amt");
if (Integer.parseInt(Money) % 20 == 0 && Integer.parseInt(selection) < 10000)

Paye += Integer.parseInt(Money);


int depositFunds, currentBal;
currentBal = Integer.parseInt(iF3) + Paye;
JOptionPane.showMessageDialog(null, Deposit,"Thank you.", JOptionPane.INFORMATION_MESSAGE);
backe = JOptionPane.showInputDialog("Return to main menu? \n [1] for YES \n [2] for NO");
if (Integer.parseInt(backe)==1)

selection = JOptionPane.showInputDialog(" [1] Check Balance \n [2] Withdrawal \n [3] Deposit \n [4] Exit ");
else
System.exit(0);


}
if (Integer.parseInt(selection)== 4 )
{

System.exit(0);

} ;

}

inFile.close();
JOptionPane.showMessageDialog(null,Password , "Enter Password and Acc Number", JOptionPane.INFORMATION_MESSAGE);
}
catch(FileNotFoundException FNFE){JOptionPane.showInputDialog("Invalid file");}

}
}
}

ATM.txtCNEATM.txt

[QUOTE=Norm;92383]Can you post the output from the program that shows what it is doing? Add some comments to the output that explains what is wrong with the output.

JOptionPane programs are very hard to debug because they take too much user interaction. I prefer a program that compiles, executes and displays ALL the results for the execution without any user input.
To show the program's output add some println statements next to all showMessage() calls
to print out what was shown so that you can copy that output to post on the forum.

Try running the program pls. And check ya balance three times. When ya do that jumps the the next row balance instead of sticking with the first one that ya working with. Pls try and run the program. Thanks a lot

Originally Posted by Norm

Please post a complete list of all the answers that the program requires in the order that they are read by the program. I've written a test driver that will supply the answers to the JOPtionPane methods. It needs a String that has ALL the answers to the prompts. I am not going to answer any prompts when I test the code. The answers will be 100% supplied from the list that you provide. That will make sure I am testing it in exactly the same way you are.

Please edit your post and wrap your code with
[code=java]
<YOUR CODE HERE>
[/code]
to get highlighting and preserve formatting.

Here's what the testing code I am using looks like:

   //-----------------------------------------------------------
   //  Following class for testing
   static class JOptionPane {
      static String[] retVals = {"n1","n2", "3"};  //  the responses to be returned by showInput
      static int idx = 0;  // index to above
 
      static public String showInputDialog(String msg) {
         System.out.println(msg + " val="+retVals[idx]);
         return retVals[idx++];
      }
 
      static public void showMessageDialog(Object obj1, Object obj2, String msg, int type) {
            System.out.println(msg);
      }
 
      static int INFORMATION_MESSAGE = 1;
   }   //  end JOptionPane class for testing

i dont understand what you want me to try. thanks

He wants a list of your typical input. i.e. what you type in to test it.

--- Update ---

There are quite a few variables that are not used. Either remove them or comment them out.

I found some other oddities (syntax errors), like these:

						while(inFile.hasNext())
						{
							iF1 = inFile.next();
							System.out.Println(+ iF1 +iF2 +iF3);
							iF2 = inFile.next();
							iF3 = inFile.next();
							System.out.Println(+ iF1 +iF2 +iF3);
							if((iF1.equals(name)) && (iF2.equals(name2)))
							 {

download the input file at the bottom if my question called ATM.txt. the first column is the account number and the second column is the password and the third column is the amount of the account. i appreciate the help and effort yall